20512142704

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{90659}}^1$

素因数の和:90925

約数の個数: 40

約数和(自身を含む): 40470624000

約数和(自身を除く): 19958481296

約数列:

[1, 2, 4, 8, 16, 79, 158, 179, 316, 358, 632, 716, 1264, 1432, 2864, 14141, 28282, 56564, 90659, 113128, 181318, 226256, 362636, 725272, 1450544, 7162061, 14324122, 16227961, 28648244, 32455922, 57296488, 64911844, 114592976, 129823688, 259647376, 1282008919, 2564017838, 5128035676, 10256071352, 20512142704]

約数ペア:

[(1, 20512142704), (2, 10256071352), (4, 5128035676), (8, 2564017838), (16, 1282008919), (79, 259647376), (158, 129823688), (179, 114592976), (316, 64911844), (358, 57296488), (632, 32455922), (716, 28648244), (1264, 16227961), (1432, 14324122), (2864, 7162061), (14141, 1450544), (28282, 725272), (56564, 362636), (90659, 226256), (113128, 181318)]